Type-writing machine.



No. 687,500. Patented Nov. 26, |901.

J. FELBEL & C. GABRIELSON.

TYPE WRITING MACHINE.

(Applimon med Apr. 2e, 1901.)

'71 Ad? Mgg@ Tus Norme, PETERS n. vwo'fvmTr-oA wasnmxorl, l:A c.

No. 687,500. Patented Nov. 26, |90I. -J. FELBEL & C. GABRIELSUN. TYPE WRITING MACHINE.

(Application led Apr. 26, 1901.) (No Mndel.) 5 Sheets-Sheet 2.

TI| y M d- Wm- Inu IJ 2V m m, om, 1 uw m o@ .c Y m v m n M @I Im www @n y ./W m wb2 m Q D Q @M Www- 5555:

No. 687,500. Patented Nov. 26, 190|. J. FELBEL & C. GABRIELSUN.

TYPE WRITING MACHINE.

(Application led Apr. 26, 1901.)

5 Sheets-Sheet 3.

(N0 Model.)

Y INVENTDRE. QMLQK J3? Ef MTNEEEES.

M/MMM.

www

In; nonmg crsng co.. gnoraurun.. wAsHmGToN. u. a.

A Patentedl Nov. 26, |90I.

J. FELBEL &. C. GABRIELSDN.

TYP E WRITING MACHINE. (Application filed Apr. 26, 1901.)

5 Sheets-Sheet 4.

(No Model.)

r INVENTURE:

/ywy i E /KWMMQW 'mi Norms PETERS co. Pnoau'mo., wAsmnoTo, 0.a.

No. 687,500. Patented Nov. 26, I90I.-

J. `FELBEL &. C. GABRIELSON.

TYPE WRITING MACHINE.

(Application filed Apr. 26, 1901.)

(Nu Model.) 5 Sheets-Sheet 5.

WITNEESEE INVENTEJRS 7h. V I Ma/m UNITED STATES PATENT OEETCE.

JAOOB FELBEL, OF NEW YORK, N. Y., AND CARL GABRIELSON, OF GREEN- VILLE, NEW JERSEY; SAID GABRIELSON ASSIGNOR TO SAID FELBEL.

TYPE-WRITING MACHINE.

SPECIFICATION forming part of Letters Patent No. 687,500, dated November 26, 1 901.

I Application led April 26, 1901. Serial No. 57,519. (No model.) L

borough of Manhattan, in the city, county, and State of New York, and CARL GABRIEL- SON, of Greenville, in the county of Hudson and State of New Jersey, citizens of the United States, have invented certain new and useful Improvements in Type-Writing Machines, of which the following is a specification.

Our` invention relates more particularly to front-strike writing-machines of the general constructionshown in the patent granted to Jacob Felbel September 18, 1900, No. 657,927, and the patent granted to 'Carl Gabrielson February 26, 1901, No. 668,713, although some of the features are applicable to other types of machines.

The objects of the invention are to improve the above-referred-to machines, to minimize the liability'of binding or cramping the keylevers and to improve the mounting thereof, to improve the key-lever springs, to improve the type-bar-shifting mechanism, to improve the mounting of the universal bar, andto effeet various other improvements in the machine, all as will hereinafter appear.

The invention consists in certain combinalions of devices, features of construction, and arrangements of parts, all as will be hereinafter fullyset forth,and particularly pointed out in the concluding claims.

In the accompanying drawings, Figure 1 is a central vertical section taken longitudinally of a front-strike machine made in accordance with our invention, all of the parts being shown in normal position. Fig. 2 is a perspective view of a portion of the mechanism for shifting and locking the type-bars. Fig. 3 is a top plan view of the lower portion of the machine. Fig. Il is a front sectional elevation of the machine, taken just forward of the type-bar segment. A Fig. 5 is a perspective view illustrating the manner of mounting the key-lever springs. Fig. 6 is a detail of some of the parts of the case-shifting mechanism. Fig. 7 illustrates the working position of the case-shift lock. Fig. 8 is one of a pair of brackets which support both the universal bar and the sublever fulcruni-rod. Fig. 9 is a front sectional elevation of the lower portion of the machine, taken just forwardly of the universal-bar frame. is a bottom plan view.

In the several views portions are omitted or broken away, so as to disclose the severalimprovements more clearly, and similar parts are designated by similar numerals of reference.

y The framework ofthe machine comprises a base 1, corner-posts 2 thereon, and a top plate 6o 3, over which travels a platen 4. Rearwardlystriking radial type-bars 5 are pivoted at their rear ends upon a curved wire 6, which is seated in a curved groove 7, formed in a sehment 8, the latter being radially slotted at 9 65 to receive the type-bar hubs. Each typeblock 10 bears two characters. At their forward ends the type-bars rest upon a pad 11, fitted in a case 12, which is supported by horizontal rods 13, whose rear ends are lixed in 7o the segment-casting. For each type-bar is provided a returning-spring 14, attached to a hook 15, pivoted to the type-bar hub and extending obliquely therefrom, the forward end of the spring being attached to one of a series of lingers 16, formed upon a segmental plate 17, secured to the pad-case 12.

The type-bars are connected by rearwardlyextending links 18 to the upper ends of upright bell-cranks 19,thc lower portions where- 8o of are pivoted at 2O upon horizontal key-levers 21, between the ends of the latter. The bell-cranks or sublevers cross the key-levers and are provided therebeneath with forwardlyextending arms having horizontal slots 22, which fork a fixed horizontal transverse fulcrum-bar 23, antifriction-rollers 24, Fig. 3, being disposed along said bar. Depression of the key -levers causes the upwardly-extending arms 19 to vibrate rear- 9o wardly about the pivots 20 and swing the type-bars up to print. Keys 25 are provided upon the forward ends of the levers 21, whose rear ends bear up against the under surface of a dat horizontal fulcrum-plate 26. The rear ends of the levers are formed with elongated convexly-curved obliquely-extending treads 27, the forward portions of the treads normally bearing up against said fulcrumplate. During the vibration of a lever the Ico point of contact thereof with the fulcrumplate creeps rearwardly, and at the comple- Fig. 10

tion of the stroke the rear end of the tread is bearing. Thus at the beginning of the strokeV the key is enabled to have a good leverage or purchase upon the type-bar,'while during the stroke said leverage is automatically decreased, reaching a minimum at the completion of the stroke. lThe treads are notched to engage a fixed horizontal transverse rod 28, whereby endwise displacement of thel levers is prevented, and are guided in a fixed comb 29, whose slots are open at the top, the solid portion or back of the comb eX- tending across beneath the key-levers and being secured by forwardly-bent ears 30 and screws 31 to the bottom edges of a pair of fixed parallel bars 32, between which the rear ends or treads of the'key-levers are arranged. Said bars are provided with ears 32, which are screwed to bosses 33, formed upon the under side of an overhanging plate portion 1iL of the base. `Midway between its ends the comb 29 is provided with a forwardly-extending keeper-ear 34, which is screwed to the bottom of a lug 35, depending from the plate la, said ear overlapping or extending beneath the rod 28, whose middle portion is supported in a notch in said lug, and the latter extending down between the middle key-levers, which are separated, so as to afford room therefor.

The ends of the fulcruin-plate 26 rest upon the top edges of plates 36, secured by screws 37 to the opposing faces of the bars 32, said edges being shaped to coincide with the keylever treads 27, so that the fulcru m-plate may be .tipped upon said edges or ways while in contact with the key-levers and without disturbing the latter. By adjusting the fulcrumplate it may be caused .to contact with the key-lever treads at other points, thereby altering the initial leverage of the keys upon the type-bars. By this means the initial key resistance may be increased and the keystroke shorl ened, since the more the rear portion of the fulcrum plate is tipped downwardly the greater the initial distance between the bearing-point and load-point of the lever and the sooner is the leverage of the key reduced to the minimum. The adjustment of the plate is effected by a thumbscrew 33, which is threaded through the overhanging portion 1a of the base and contacts at its lower end with the upper face of the fulcrum-plate, a headed shoulder-screw 39 passing up through a perforation 40 in the latter and being tapped into the lower end of the thumb-screw, so that the plate may be adjusted either downwardly or upwardly by turning the thumb-screw in the proper direction. At each end of t-he fulcrum-plate and upon its upper face is fixed a plate-spring 41, whose forward end bears up against the under side of the overhanging plate 1 and serves to hold the fulcrum-plate down upon its ways, so that it cannot'yield when the keys are operated.

Referring now to Fig. 3, it will be noted that the key-levers diverge or fan out from their rear ends to the keyboard. The width of the key-lever system at the junction of the sublever system therewith is substantially equal to the width of the type-bar system or to the system of links 18, the bell-cranks 19 extending vertically from the key-levers to the links. The width of the key-lever system at said junction of the sublever system is greater than the Width of the rear end of the levers and less. than the width atthe keyboard. Beginning at a point just forward of the sublever system the divergence of the key-levers increases or the levers fan out more rapidly than at their rear ends, while the key ends of the key-levers--that is, Vthe portions thereof which extend in front of the usual comb 42--are parallel. It will be seen that the key-levers work in diverging vertical planes, but that the load-point and tread or fulcrum end of each lever lie substantially within the vertical plane in which the lever works, so that there is a direct application of power, side strain or torsion of the lever being avoided, and binding or cramping of the latter'iu its guiding-comb being minimized or eliminated. It will be seen at Fig. 3 that it' a line (representing a vertical plane) be drawn Adirectly from the rear end of any key-lever to the center of its key it will pass through or, at least, very closeto the load-point of the lever where the sublever 19 is pivoted, and it Will also be-seen that the tread of the lever substantially coincides with said line, and henceworks at all timesin the same vertical plane, so that binding or cramping is avoided at all portions of the lever-stroke. It will further be seen that the sublevers 19 vibrate rearwardly and forwardly in diverging vertical planes, according to the divergence of their respective key-levers.

Arranged over the key-levers is a set of horizontal wire-loop or duplex springs 43, the rear ends of which are mounted upon a transverse horizontal bar 44, Figs. 1, 3, 5, and 10, whose ends are secured by screws 45 upon the forward ends of the fixed bars 32. Upon the rear edge of the bar 44 are formed teeth 46, beneath which the closed ends of the loops are hooked,the loops passing thence upwardly and being bent over the rear corner of the bar, whence they extend forwardly beyond the sublevers 19, the forward ends of the springs being bent at 47 and engaging open vertical hooks 4S, whose lower ends are pivoted to the key-levers, each branch of each springy being thus connected to a separate lever. It Will be seen that the springs which bear upon the top of the bar 44 extend longitudinally of the key-levers and are sufficiently long to be very elastic and also that they may be readily engaged or disengaged from the teeth 46 and hooks or link'sA.'4 The latter swing freely upon their pivots during the movements of the key-levers. rlhe key-1evers are of assorted lengths, and, as will be seen at Fig. 5, one branch of each loop-spring is longer than the other, the longerbranch IOO TIO

being connected to a long lever bearing a key in one of the two forward rows at the keyboard and the shorter branch being connected to a shorter lever bearing a key'in one of the two rear rows, thus in a measure equalizing the resistance of the keys to the finger touch. Over the rear portions of the springs extends a cover-plate 49, which is fastened by screws 50 upon the bar 44 and has along its rear side a downwardly-directed keeper-flange 51, which lies against the teeth 46 and prevents accidental displacement of the springs.

The type-bar segment or frame 8, which is capable of vertical shifting movements, is guided by antifriction-balls 52, running in vertical grooves formed both in the sides of the frame and also in guide-posts 53, which are secured by screws 54 upon seats 55, Fig. 4, cast upon the base l. By mounting the segment-guides upon the base instead of upon l the top plate,as shown in said patents,not only is considerable jar and noise eliminated during the shifting of the segment, but it becomes possible to remove the top plate, together with the ribbon and carriage mechanisms usually placed thereon, for repairing or adjusting these mechanisms and without disturbing the type-actions, while at the same time ready access is afforded to said type-actions for cleaning, repairing, or adjusting the same. Moreover, the type-actions may be completely assembled before the top plate is put on, which is a great desideratum and effects a considerable economy in manufacture. The segment-frame is connected bydOWnWardIy-extending links 56 to a pair of rocker-arms 57, extending rearwardly from a rock-shaft 58, the latter crossing the base and being journaled in the side walls thereof and being also provided with an adjustable spring 59 for opposing the weight of the segment and type-bars and rendering the latter easier to elevate. Upon the rock-shaf t 58,near itslefthand end, is fixed a forwardly extending rocker arm or lever 60, which coperates with a lever 61, arranged by the side thereof and loosely engaging the shaft by means of a hub 62. Said lever 61 has an elongated curved tread 61a, upon which bears the bot-tom edge of a lever 63, which is provided at its forward end with a shift-key 64. The tread 61L inclines downwardly from its front end, which is first engaged by the lever 63, and as the latter is depressed the contact-point between the two levers creeps gradually toward the lever-axis 58. Thus the shift-key has a good initial purchase upon the shifting mass, so that the latter is. easily put in motion, while the leverage decreases during the stroke, so that the shift is effected without an excessive dip of the key.

The shifting movements of the segmentframe are limited by stop-arms 65, fixed upon the guide-posts 53, with which coact adj ustable stops 66, provided upon the frame. Vhen said stops are adjusted, the position of the rocker-arm 60, which is positively connected to the segment-frame, is changed, as Well as the position of the lever 61, and in order to adjust the latter to its normal position with reference to the shift-key lever 63 a slot 67 is formed longitudinally of said lever 6l, and there is arranged therein an eccentric-disk 68, which is perforated to receive the shank of a large-headed screw 69, which is tapped into the forward end of the rocker-arm 60. The eccentric may be swung upon the axis 69, so as to adjust the lever 61 into contact with the key-lever 63, and then the screw 69 may be tightened, so as to clamp the eccentric against the face of the rocker-arm 60, said eccentric being thicker than the lever 61, so that the head of the screw may not touch the latter and bind thereon. The lever 61 is provided with `a looped guiding-strip 70, open at its upper end and forkin g the shift-lever 63, so as to prevent the latter from working off from the tread 61a. The lever 63 is pivoted at its rear `end upon a pin 71, fixed in a lug 72, depending from the base-plate l, and an extended end of the lever carries a compression-spring 73, which bears on the under sidefof` the plate 1a for returning the lever to normal position. A segment shifting and locking lever 74, pivoted upon the pin 71 and arranged alongside of the principal shift-lever 63,v bears upon an antifriction-roller 75, mounted upon the lever 61, and is providedr with a key 76 and a returning-spring 77,. Upon the upper edge of the lever rests a gravity-latch 78, which is mounted upon a pivot-screw 79 and provided with a jog 80, the latter being adapted to engage the head 81 of an adjustable screw, which is tapped into an upwardly and forwardly extending arm 82, formed upon the hub 83 of the rocker-arm 60, said screw being provided with a binding-n ut 84. The arm 82 is ranged alongside of the locking key-lever 74 and be neath the latch 78, the forward end of the latter being bent inwardly at 78a, so as to rest upon the top of the lever 74,whereby it is supported in normal position. The lever 6l and the shift mechanism controlled thereby may be operated by either of the key-levers 63 and 74, the latter being used, however, only when it is desired te permit the latch 78 to drop into engagement with the adjustable stop 8l upon the arm 82, so as to prevent the return to normal position of said arm, and hence of the entire shifting mechanism. When the parts are in the Fig. 7 position, the friction between the jog or shoulder and the screw 81 is sufficient to prevent the spring 77 from vibrating the key-lever 74 upwardly and lifting the latch-78. Hence by the depression of the key 76 the type-segment is both shifted and locked.

Extending transversely beneath the key-levers is a universal bar or roller 85, which is journaled upon the rear ends of arms 86, secured by hubs 87 upon a rock-shaft 88, the latter being mounted upon pivots 89, secured by screws 90 in a bracket 91, which is fastened by screws 92, Fig. 9, to the under side IOC IIO

of a horiziontal bar 93,l extending across the v open baseand cast integral therewith. It

p wardly from the lrock-shaft 88 and is conthe completion of` thestroke.

nected by a vertical link 97 to a rocker 98, vwhich is provided with both a feeding-dog 99 and adetent-dog 100, coperating with a rack `101 in the usual manner to control the letterfeeding movementsof'theplaten` 4. vSaid-dogy rockerisprovided with a returning-spring 102. The arm ,96 upon the universal -bar shaft is extended forwardly at 103 and providedl with a compression-spring 104, which bears upagainst the under side lotafcu-rved arm 105,'secured by a screw 106 to the-under side of the bar 93, aboutmidfway offitsfile'ng'th, and hooking over the fulcrum-rod: 23, -so as -to aiord a support thereforand prevent vibra- -tionofthe middle portion thereof at the operationk of the sublevers 19. The link 97 is slipped .over apin' 107, prog'ectingl; laterally from the arm :96, and is held in place by a ,yielding keeperlOS,theI forward end of which is riveted lto :the arm 96,

' In operation atype-key 25 is'depressed, forcing down the leveri21, together with .the -sublever or bell-crank 19, pivoted thereon, the latter being-caused by the'fulcrum-rod 23 to swing rearwardly at'its upper end and through the linkl 18 .to pull the type-bar up `to print. At the Sametime-the universalbar `85 is carried-down, thus rocking the shaft `88 and by means of `the arm 96 and link 97 operating thedog-rocker 98, so as Ato` disengage the `feeding-dog- 99 andengagevthe d-etent-dog 100W-ith the rack 101. UponL the relief of the finger-key from pressure the springs V14, `43,.102,.and 104 return the parts to normal position, ythe rack 101 and platen 4 being fed a letter-space in the usual manner. During the printing stroke of the key-lever the tread 27 thereon rolls alongV .or upon the fulcrumplate26, thus gradually decreasing the leverage of the key upon the type-bar, and hence gradually increasing the key resistance and checking the movement of the operators hand, so as to avoid giving a jar thereto at Simultaneously the speed of the type-bar -is increased, so that Va sharp blow. is delivered thereby. At the beginning of the return stroke the leverage of the key upon the type-bar i's least, and hence the movement of the latter is made at maximum speed, so that it is not likely to collide lwith the next-operated type-bar. If it is desired to increase the keyresistance and diminish the dip thereof, the screw 38 may be adjusted downwardly, thereby tipping thefulcrum-plate 26 upon its-ways 36, the rear portion of said plate descending, whereby the initial contact. or vbearing point of all of the levers is shifted rearwardly, thereby decreasing the initial leverage of the An arm 96 extends rear- .esmo

keys upon the type-bars, and hence increas; ing theV key resistance and shortening'the key-stroke, as already explained. It will be seen that, if desired, the screw 38 may be turned down until only the extreme rear bearing-points of the lever-treads touch said plate, thereby reducing the key-stroke to a minimum. The springs 41 keep the plate constantly bearing upon its ways, so that there isno shake of the former in -any position, When it is desired to print a capital `le.tter,.the shift-key 64 is depressed, forcing down its `lever 63 and thelever 61, thus rockingthe shaft 58 and swinging-upwardly the arms 57 thereon and by means of the links 56 elevating the segment-frame, type-bars, and type-basket. While the type system is in this position, any of the-type-keys 25 may i be o perated, thereby causing theV capital or upper-case types u'pon the. type-blocks 10 to print. The `upward shift of lthetype system `is assisted Abythe spring 59, and the ytouch of the shift-key is`further improved because of vthe-great initialleverage of the shift-key 1ever 63' upon the lever 61, wherebythe initial resistance of thekey to the 'touch is diminished. Upon the release of the `key 64 the ltype system drops to normal position. When it-is desired to write several words in capi- `pressed, and through its lever 74 and the roller 75 the lever 61 is forced down, thus elevating the type-segment in the above-describedmannergsaid lever 61 acting through ltal letters, the shiftand lock key 76 is de- IOC the rocker-arm 60 to rock the shaft' 83, and

the arm 82 simultaneously swinging forwardly, as illustrated at lsllig.` 7. Duringthe downward movement of thelever 74 the latch 78 is permitted to drop, and at the time that theshi-ft movement of the type-segment is completed said latch `falls behind the head of the screw 81 upon said arm82, thereby locking the latter against return movement and also holding down the locking-key lever 74, sincef the spring 77 is incapable of causing the lever 74 to rise against the frictional opposition arising from the reaction of the arm 82 uponthe projection 80 of the pawl. Thus both hands of the operator are left free to manipulate the type-keys. Whenit is desired to return the type-segment to normal position, the principal shift-key lever 63 is depressed, and by bearingdo'wn the lever 61 the pressure between the screw 81 and the IIC Irf

projection v80 of the latch 78 is relieved, so

that the spring 77 is enabled to lift both the lever 74 and the latch, thus unlocking the arm 82, and hence permittingl the type-segment to drop.

What we claim as new, and desire to secure by LettersPatent, is

1.` In a type-writing machine, the combinationof a system of type-bars, a system of keylevers extending beneath the type-bars, and

a Ysystem of connections extending upwardly from the key-levers to the type -bars, `the width of the system of connections being less than the width of the keyboard, and the keylevers being parallel at their key ends and converging from the keyboard to their rear ends and working in converging vertical planes.

2. In a type-writing machine, the combination of a system of type-bars, a system of keylevers extending beneath the type-bars, and a system of connections extending upwardly from the key-levers to the type -bars, the Width of the system of connections being less than the width of the keyboard, and the keylevers being parallel only at the keyboard and converging therefrom to a line just forward of the connections, and' thence converging less sharply to their rear ends, so that the fulcrum load-point and key of each lever lie substantially in line.

3. In a type-writing machine, the combination of a system of type-bars, a system of'converging key-levers, and a system of levers pivoted upon the converging portions of said key-levers and connected to the type-bars.

4. In a front-strike writing-machine, the combination of a system of rearwardly-strik` ing type-bars, a system of converging keylevers, a system of bell-cranks pivoted upon the converging portions of said key-levers and vibrating in converging planes, and a fulcrum-bar extending transversely beneath the key-levers, said y bell-cranks having upwardly-extending arms which are connected to the type-bars and also having arms engaging said fulcrum-bar. y

5. In a front-strike writing-machine, the combination of a system of rearwardly-striking type-bars, a system of converging keylevers extending rearwardly beneath the type-bars and having extended treads which are adapted to work along a xed fulcrumplate so 'as to change the leverage of the keys upon the type-bars, a system ot' bell-cranks pivoted upon the levers and working in converging vertical planes, and a fulerum-bar extending transversely beneath the key-levers and engaged to forwardlyextending arms upon the bell-cranks, the latter also having upwardly extending arms which are linked to the type-bars.

6. In a type-writing machine, the combination of a series of type-bars, a series of levers connected to the type-bars and having converging elongated treads, an adjustable fulcrum-plate along which said treads work, anda guide-comb for the tread portions of the levers, said guide-comb being fixed upon the framing.

7. In a type-writing machine, the combination of a series of type-bars, a seriesof levers connected to the type-bars and having elongated converging treads, an adjustable fulcrum along which said treads Work, and a guide-comb for the tread portions of the levers, said guide-comb being fixed upon the framing and the guiding-slots in said comb being open at the top.

y8. In a type-Writing machine, the combination of a series of type-bars, a series of keylevers of the second order connected thereto and having converging treads at their rear ends, an adjustable fulcrum plate along which said treads work, tixcd bars 32 between which said treads are confined, and a slotted comb having guiding-slots open at the top and secured at its ends upon said bars.

9. In a type-writing machine, the combination of a series of type-bars, a series of keylevers connected thereto and having converging treads 27, transverse guiding-comb 29 extending beneath said treads, parallel bars 32 to which said comb is secured by ears 30, ears 32a whereby said bars are secured to the framing, and fixed rod 28 engaging notches formed in the treads.

10. In a type-writing machine, the combination of a series of typebars, a series of keylevers connected thereto and having convergingtreads 27, transverse guiding-comb 29 extending beneath said treads, parallel bars 32 to which said comb is secu red by ears 30, ears 32a whereby said bars are secured to the fram-I ing, and fixed rod 28 engaging notches formed in the treads, said comb having between its ends an ear 3l which is attached to the framing and'overlaps the middle portion of the rod 28.

1l. In a type-writing machine, the combi` nation of aseries of type-bars, a series of keylevers connected thereto and having converging treads 27, transverse guiding-comb 29 extending beneath said treads, parallel bars 32 to which said comb is secured by ears 30, ears 322t upon said bars whereby they are secured to the framing, and fixed rod 28 engaging notches formed in the treads, said comb having between its ends an ear 3l which overlaps the middle portion of the rod 28 and is secured to a lug 35 along each side of which key-levers are ranged, said rod 28 being seated in a notch formed in said lug.

12. In a type-writing machine, the combination of a system of type-bars, a system of keylevers of the second order connected thereto and having converging curved treads, a base having a plate portion la which overhangs said treads, a guide-comb 29 extending beneath the treads and having guiding-slots open at their upper ends and engaging the converging treads, ears 30 and 34 upon said comb, transverse rod 28 engaging notches in said treads, fixed at its ends in the base, seated between its ends in lug 35 depending from said overhanging portion l, and held in said notch by said ear 34E, bars 32 attached to the under side of said base portion la, said ears 30 being secured to said bars, bearingplates 36 secured upon said bars, a fulcrumplate resting upon said bearing-plates 36, a thumb-screw 38'for adjusting said fulcrumplate, screw 39 passing through a perforation in said fulcrnm-plate and tapped in'to said thumb-screw, and springs 4l lixed upon said fulcrum and bearing up against the under side of said yover-hanging portion la IOO IIO

tudinally of the levers and connec-ted thereto,

and a keeper plate or bar for said springs.

15. In a type-Writing machine, the combination ot a set of type-bars, a set of key-le-I vers connected thereto, transverse bar 44 having teeth 46, loop-springs 43 hooked upon said teeth, links 48 connecting said springs to the key-levers, and cover-plate 49 having a keeper-ange 51 which is placed over said springs.

16. In a front-strike writing-machine, the combination of a set of type-bars, a set of key-levers extending rearwardly beneath the type-bars and having treads at their rear ends, a plate along which said treads work, a system of sublevers pivoted upon said keylevers and connected to the type-bars, 'and a system ot' forwardly-projecting springs mounted in rear of said snblevers and connected to the key-levers in front ot' said sublevers.

17. In a front-strike Writing-machine, the combination of type-bars 5, key-levers 2l having treads 27, fulcrum-plate 26, upwardlyextending sublevers 19 pivoted upon the keylevers and connected to the type-bars, springs 43 mounted in rear of the sublevers and projecting forwardly beyond the sublevers, and

- u links 48 connecting said springs at their for- Ward ends to the key-levers.

18. In a type-Writing machine, the combination with a set of type-operating key-levers ot assorted lengths, of a transverse bar, teeth upon said bar, and loop-springs hooked upon said teeth and connected to said key-levers, the branches of each loop being of unequal length and connected to key-levers of unequal length.

19. In a front-strike writing-machine, the combination of a base, a set of type-bars, a frame in which said type-bars are mounted, vertical grooves formed in the sides of said frame, guide-posts secured at their lower ends upon the base of the machine at the sides of said frame and unsecured at their upper ends,.

opposing grooves formed in said guide-posts, bearing-balls running in said grooves, means for shifting said frame, and keys connected to said type-bars.

l20. In a front-strike writing-machine having a base', corner-posts thereon, and a top plate attached to the corner-posts, the combination of a set of rearwardly-striking typebars, a frame upon which the latter are pivotally mounted, grooves formed ih the sides of said frame, groovedr guides extending upwardly from the base at each side of said frame andV unattached at 'their upper ends, balls working in said'grooves, a shiftkey connected to said frame, and a set otA key-levers mounted in the base and connected to said type-bars.

. 21. In atype-writingmachine havingabase and a top plate supported thereover, the combination ot a set of type-bars, a frame upon which theyare mounted, guide-posts at each side of said frame, Yseats upon the base to which said guide-posts are secured, and a set of key-levers mounted in the base and connected to said type-bars.

22. In a front-strike writing-machine having a base, the combination of a set of typebars, a frame in which they are mounted, a pairof guiding devices extending upwardly from the base of the machine at the sides of said frame and unattached at their upper ends, stops upon said guiding devices, corresponding stops upon said frame, and a set of keys mounted in the base of the machine and connected to said type-bars.

28. In a type-writing machine, the combination of a set of type-bars, a shiftable frame upon which they are mounted, a rock-shaft operatively connected to said frame, arm mounted upon said shaft, lever 61 having tread 6l, eccentric 68, screw 69, slot 67 in said lever 61, and shift-key lever 63 bearing upon said tread.

24. In a type-writing machine, the combination with a set-of type-bars, and a shiftable segment upon which they are mounted, of an arm 82 operatively connected to said segment, an adjustable device 8l thereon, a latch 78 adapted to engage said adjustable device, and

a key-lever 74 connected to said segment and holding said latch in an idle position.

25. In a type-writing machine, the combination of a set of type-bars, a shiftable segment in which'they are mounted, rock-shaft 58 connected to said segment, arm 82 upon said rock-shaft, adjustable screw 81 upon said arm, pivoted latch 78 having shoulder 8O for engaging said screw 8l, key-lever 74 holding said latch in an inoperative position, land means for enabling said key-lever to rock said shaft.

26. In a front-strike writing-machine, the combination of a set of type-bars, a verticallyshifting segment in which they are mounted, rock-shaft 58 connected to said segment, arm 60 upon said rock-shaft, lever 61 having tread 61, eccentric 68, screw 69, slot 67, shift-key lever 63 bearing upon said tread, arm 82, adjustable screw 8l upon said arm 82, latch 78 having a portion 8O for engaging said screw 81,v lever 74 holding said latch in an inoperative position, and roller 75 mounted upon said lever 61 for engagement by said lever 74.

27. In` a type-writing machine, the combination with a set of type-.operating levers, of a transverse universal bar or roller 85, arms ICO IIC

86 upon the ends of which said roller is journaled, rock-shaf t 88 to which said arms are secured, pivots 89 upon which said rock-shaft is mounted, brackets 91, a fixed transverse horizontal bar 93 to which said brackets are secured, and carriage-feeding devices operated by said universal bar. I

28. In a front-strike writing-machine, the

, combination of a set of type-bars, a set of keylevers, a set of sublevers pivoted upon the key-levers and connected to the type-bars, a fulcrum rod 23 forked by said sublevers, brackets 91, keepers 94, and screws 95.

29. In atype-writing machine having a base, the combination of a set of type-bars, a set of key-levers, a set of sublevers pivoted upon the key-levers and connected to the type-bars, a bar 93 extending across the base, brackets 91 secured to said bar, pivots 89 in said brackets, shaft 88 mounted upon said pivots, arms 86 upon said shaft, universal bar 85 carried by said arms and connected to carriage-feeding devices, fulcrum rod 23 carried in said brackets 91 and detachably retained by keepers 94, said rod 23 being forked by said sublevers, and arm 105 extending from said bar 93 and engaging the middle portion of said fulcrum-rod 23.

30. In a type-writing machine having a base, the combination of a set of type-bars, a set of key-levers, a set of sublevers `pivoted upon the key-levers and connected to the typebars, a bar 93 extending across the base, brackets 91 secured to said bar, fulcrum-rod 23 carried in said brackets 91 and retained by detachable keepers 94, said rod 23 being forked by said sublevers, and arm 105 extending from said bar 93 and engaging the middle portion of said fulcrum-rod 23.

Signed at the borough of Manhattan, city of New York, in the county of New York and State of New York, this 25th day of' April,

JACOB FELBEL. CARL GABRIELSON. Witnesses:

K. V. DONOVAN, E. M. WELLS. 

